# Circle Regions Interactive Graphics Mode

Circle Regions are used to define circular features. The Circle Region captures everything inside the circle. To define a circular feature while ignoring the center of the circle, use an Annulus Region.

Circle Region Mouse Actions

| Controls | Description
--- | --- | ---
1 | Move | By placing the mouse cursor inside the region, the mouse cursor icon will automatically transform, allowing you to drag the region anywhere within the image.
2 | Resize | By placing the mouse cursor over the circular region's boundary, the mouse cursor will automatically transform, allowing you to drag the region to resize it.

Circular Region Scan Direction

Circular Regions scan for features from the center of the circle to the outer radius.